20965231

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{743}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 24998400

約数和(自身を除く): 4033169

約数列:

[1, 7, 29, 139, 203, 743, 973, 4031, 5201, 21547, 28217, 103277, 150829, 722939, 2995033, 20965231]

約数ペア:

[(1, 20965231), (7, 2995033), (29, 722939), (139, 150829), (203, 103277), (743, 28217), (973, 21547), (4031, 5201)]